Chaeles mcneal



(Model.)

G. MoNBAL.

WOODEN PULLBY.

N0. 351,064. Patented Oct. 19, 1886.

INETED STATES PATENT FFICEQ CHARLES MCNEAL, OF MISHA"WAKA, INDIANA, ASSIGNOR TO \VALLACE H.

' DODGE, OF SAME PLAGE.

WOODEN PULLEY.

SPECIFICA'IION rorming part of Letters Patent N0. 351,064, datecl October 19, 1886.

Application filcd April 2, 1886. Serinl X0, 197,563. (l\[li0l.)

T0 all 1U7L077L izf ma'y concern: transversely 011 an irregular lineszty like the Be it known thnt l, CHARLES MONn.\ L, of line d, Fig. 3so tlmt the1e is 011 one side ade- Mishawako, in tl1e oounty of St. Joseph and pression or hollow and on the other side apro- State of Indiana, have invented neW and usejeotion which exaetly nmtches in and fits said ful Improvements in \Vooclen Pulloys; und I depression. The 2ums 01 spokes Gare then in- 5 do hereby deolare tlmt the tbflowing is a full serted and llxstened securel y 130 the pnlleyseeund aceurate (lescription of the Same, refertion soconstrueted. Other rings, ee, are then encebeinghad so theaccompanying drawings. gluecl fast to the divided rim, tl1e part s of \Vooden pulleys 211e genemlly eonstructed which have been put in proper position, sepa- IQ by gluing together u, series of woo len rings, rated by pieecs of pnper o1 other proper ma- 6 xvhioh together constitnte a ring having the terial having 1L thiekness equal to tl1e sowrequisite diameter and Wi(lth of I'ace. A hub k@rf. TliiS oompletes the pulley tofull width, ancl spokes 01 arms 2ue inserted, sometimeg with the ends 0l' the arms or spokes O buried during tl1e prooess of blltllllg up the ring 2Llld in the rim. The outer rings, e e, are then disometimes subseqnently. videcl with a straight saw, as shown in Fig. 1, 65

My presentinvention relntes partieulztrly 1 0 and the separable ends are thus provided wit-h that olnss of pulleys known as wooden pul an interlocking joint, by which the two ad.- ieys, so1ne of whieh me sopzu*able through joining parts are kopt in constant and proper the hub und known es split pulleys, Letters relative position under all eireu1nstanoes.

2 Patent N0. 260,462 hzwing been granted to After lmving been built up und the pulley-rim 7c \Vallace H. Dodge an(l George Philion und divided, as above deseriloed, the fastening- Letters Patent N0.- 27623 0 granted to W. II. bolts f2110 inserted, the hob is bored, and the Do(lge for pulleys of this dass; and it eonsistg, pulloyrixn tnrnecl up true und finished. first, in the hereinal'terdesoribecl loclejoint at 'lhe seooml part of 1ny invention relates to 25 the seporable ends of ihe segments; seeond, the 1nunner ofinserling the endsof the arms O, 75 in tl1e tupered, (lovetail, an(hvedge joint unitwhether the rim is divi(led 01 not. Euch end ing tl1e end of tho spoke with fl1e pulley=xrim; of euch spoke C is (tut so as to eonstitute a, thircl, in a stay-braoe l'or pulleys ol' kuge size. dovetailotl tenon, y, but so that said tenon is Figure l is zu porspective view ot the adwedging o1 narrower on one edge than on the joining ends of fixe two purts of my pulley othr, as shown in -Figs. 2 und 4. A straight 3 separated, showing t]xe lock-joint. Fig. 2 is or parallel sided dovetaile l mortise, h, is out a perspective of the end of one of the arn1s or transversely on t-he inner surface ot the rim for spokes,showing the wedging dovetnil. Fig. eaeh spoke und, und when properly inserted in 8 is o perspeotive view showing pulley-rim at said mortises the dovetailed tenons g fit said the peri0d when the spokes are inserte l und mortises on one side, bot have a wedge-shaped the look-joint is i'ormed. Fig. l is a perspeereoess 011 the other. 'lhis reeess is filled with 2L tive view, partly in seetion, showing the manweclge, z, wl1ieh firmly secures all tl1e piuts with ner of inserting oho weclging dovetailed arm a perfect fit, und when properly glued the arms or spoke in the rim a-ncl tl1e fastening-wedge. ancl Tim eonstituteasolid structure. Thenum- 0 Figs. 5 2tnd 6 represent tho manner ot' insertbei of arms so inserted maybe greztter 01 less,

ing the stoy-bolt. as desirecl.

A is the rim of tl1e pulley, built up of sue- In pulleys of lauge size, 01' those designed to eessive rings glued together with the gmin transmit great power, I prefer to insert stay crossing to insure strength und per1naneney. 01 braoe bolts K, extending from the ends of 45 [Ehemethoclpu1suedinconstrueting thepulthe arms or spokes back into t11e rim aud 1ey to protluce the loekjoint ab the sepa-mble rigidly seoured obere, so thztt the ortion of points 1's as follows: A sufiioient number ol said rim between tl1.e end of the spoke and the rings b b 130 form about one-half of the pu1- end of thepulley-section shall be relieved from 1ey are gluecl together, zus shown in Fig. 3, and the thrust or pressure of said spoke. The at- 50 then with a band or jig saw t11e rim is divicled taohment of saicl holt to the rim may be made in any suitab1e way; but I prefer t prepare a cylindrical pin, L, provided With a seat f0r the head 0f the holt K, a1'1d insert said pin in a ce]1 01' Socket in the inner snrfaee of the pul- 5 1ey-rim, said ce]1 being deep enough to receiVe said pin and seat for the bolt-head and firmly ar'1chor said b0lb in the substanee 0f said r1'm. The holt; K thence extends through the arm O, and a serew-nut; on the holt strains said arm back toward said pin L, and causes Ehe bhrusb 01 pressure of said arm to be transmitted so the pulley-rim independent 0f the porbion 0f wood, m, between said arm and t-he end 0f the pulley-secbion.

Having described my invention, I c1aim as new l. The mode 0r pr0cedure in building a wooden split pu1ley herein deseribed, which consists in firsb building Ehe central part of gaid. rim; seeond, in dividing the Same Hansversely 0n an irregu'lar line so make an interlocking joint; third, in adding a section 130 each edge 0f said central parband dividing the same With a slzraight saw, whereby the adjoining ends of the rim are provided with 1'11 terlock1'ng portions, as sei: f01th.

2. A wooden splib pulley provided with interloeking p10j ect-ions and recesses in the adjoining ends 0f the rim formed by' dividing the same 0n a curved 1ine, s1'1bstantially as sei; forth.

3. A pulley provided with an arm 0x spoke, O, having at its ends the wedging dovetailed tenons g, fitting in a dovebailed mortise, h, in bhepulley-rim,and lahe fastening-wedges z'substantially as set forbh.

4. Aseparable wooden pu'lley havingits rim divided on an irregnlar 1ine to fo1m interlocking portions ab adjoining ends, and having its spokes or arms ab their outer ends embedded in the rim With dovetailed tenons and mortises, substantially as sei: forth.

5. A splil: pulley having a section, A and the arm O, mortised into 1:he same near its end, anc1 provided with a stay-bolb, K, extending from said arm back 110 the pulley-rim at a distance from its end, substantially as sei: forth.

6. A split pulley having the rim A and'the arm O, mortised into the Same near its poinb 0f division, and provided with the sbay-bolt K.

and lshe arichoring-pin L, inserted in the rim, as s et forth.

CHARLES MCNEAL.

VVibnesses:

W. B. HOSFORD, R, D. O. SMITH. 

